Jammed my hand when I tripped and fell while running the Green course at Sharon Woods. As I tried to use my hands to break the fall, my R-hand landed awkwardly - too much weight on the fingers vs. the balls of the palm. My fingers hyper-extended backwards and instant pain ensued.
I didn't hear any crack or snap, so presumably no serious damage has been done. The hand is a bit swollen with some discoloration. Mobility and strength are both limited.
Nothing special. Mostly just ice in the first week, then let time do the healing.